The bags, which could include cakes, pasties, sandwiches, fruit and salad, are prepared that day.

Nearly 90 per cent of ingredients used by Searcy's in the cafes are sourced within a 25-mile radius of the palace, supporting local producers and growers.

Jacqueline Gibson, the palace’s sustainability advisor, said: “Our latest monthly waste report showed a 98 per cent diversion from landfill figure, and we are confident that working with Too Good To Go will help to further reduce our overall waste figures.

“Currently food waste feeds a local anaerobic digester plant in Cassington, providing renewable energy for the local community, however reducing waste at the outset remains a priority across all our waste management practices.”

Participants will need to download the app and then show it at the main gates between 4pm-5pm to gain entry to the Blenheim Estate.

The Oxfordshire Pantry is located in the Visitor Centre, where the bags can be collected.

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